-
Green, R.: Topical relevance relationships : 2: an exploratory study and preliminary typology (1995)
0.02
0.019963596 = product of:
0.039927192 = sum of:
0.039927192 = product of:
0.079854384 = sum of:
0.079854384 = weight(_text_:headings in 3724) [ClassicSimilarity], result of:
0.079854384 = score(doc=3724,freq=2.0), product of:
0.24837378 = queryWeight, product of:
4.849944 = idf(docFreq=940, maxDocs=44218)
0.051211677 = queryNorm
0.3215089 = fieldWeight in 3724, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.849944 = idf(docFreq=940, maxDocs=44218)
0.046875 = fieldNorm(doc=3724)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- The assumption of topic matching between user needs and texts topically relevant to those needs is often erroneous. Reports an emprical investigantion of the question 'what relationship types actually account for topical relevance'? In order to avoid the bias to topic matching search strategies, user needs are back generated from a randomly selected subset of the subject headings employed in a user oriented topical concordance. The corresponding relevant texts are those indicated in the concordance under the subject heading. Compares the topics of the user needs with the topics of the relevant texts to determine the relationships between them. Topical relevance relationships include a large variety of relationships, only some of which are matching relationships. Others are examples of paradigmatic or syntagmatic relationships. There appear to be no constraints on the kinds of relationships that can function as topical relevance relationships. They are distinguishable from other types of relationships only on functional grounds
-
Faloutsos, C.: Signature files (1992)
0.01
0.01387695 = product of:
0.0277539 = sum of:
0.0277539 = product of:
0.0555078 = sum of:
0.0555078 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
0.0555078 = score(doc=3499,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.30952093 = fieldWeight in 3499, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=3499)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 7. 5.1999 15:22:48
-
Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.01
0.012142331 = product of:
0.024284663 = sum of:
0.024284663 = product of:
0.048569325 = sum of:
0.048569325 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.048569325 = score(doc=1319,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.2708308 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 1. 8.1996 22:08:06
-
Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996)
0.01
0.010407712 = product of:
0.020815425 = sum of:
0.020815425 = product of:
0.04163085 = sum of:
0.04163085 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
0.04163085 = score(doc=5123,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.23214069 = fieldWeight in 5123, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5123)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 12. 9.1996 13:56:22
-
Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996)
0.01
0.010407712 = product of:
0.020815425 = sum of:
0.020815425 = product of:
0.04163085 = sum of:
0.04163085 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
0.04163085 = score(doc=6973,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.23214069 = fieldWeight in 6973, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=6973)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
-
Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995)
0.01
0.008673094 = product of:
0.017346188 = sum of:
0.017346188 = product of:
0.034692377 = sum of:
0.034692377 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
0.034692377 = score(doc=3365,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.19345059 = fieldWeight in 3365, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=3365)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.1996 11:20:06
-
Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
0.01
0.008673094 = product of:
0.017346188 = sum of:
0.017346188 = product of:
0.034692377 = sum of:
0.034692377 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
0.034692377 = score(doc=5697,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.19345059 = fieldWeight in 5697, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=5697)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.1996 13:14:10
